acminfo: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/sbin/acminfo - from package: tboot

You may install the required package with command yum install {package}

Error in other languages:
acminfo: bevel nie gevind nie
acminfo: comandă negăsită
acminfo: comando não encontrado
acminfo: commande introuvable
acminfo: command not found
acminfo: käsku ei ole
acminfo: không tìm thấy lệnh
acminfo: komanda nerasta
acminfo: Kommando nicht gefunden.
acminfo: kommandot finns inte
acminfo: komut yok
acminfo: nie znaleziono polecenia
acminfo: níor aimsíodh an t-ordú
acminfo: no se encontró la orden
acminfo: no s'ha trobat l'ordre
acminfo: opdracht niet gevonden
acminfo: parancs nem található
acminfo: perintah tidak ditemukan
acminfo: príkaz nenájdený
acminfo: příkaz nenalezen
acminfo: команда не найдена
acminfo: командата не е открита
acminfo: 命令找不到
acminfo: コマンドが見つかりません